subject
Mathematics, 19.10.2021 14:00 maxr7198

Recent scientific literature has suggested a link between exposure to the endocrine disruptor Bisphenol A (BPA) found ubiquitously in many plastic materials, and precocious puberty in adolescents. The transmission is maternal to child during the last weeks of gestation. Scientists can trace the presence of BPA in children for years after birth, and believe that it may be the cause for early onset of puberty in young girls. Suppose a researcher collects a SRS of 92 girls with high exposure rates of BPA and follows them through puberty. The sample average age of puberty was 9.7 years. Assume the national average age for onset of puberty is 11.2 years with a population standard deviation of 0.6 years. Required:
Does the researcher have sufficient evidence at the alpha level of 0.05 to determine if the exposure to BPA has led to a decreased age of puberty in girls?

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 19:00, amanda2517
To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36
Answers: 1
image
Mathematics, 21.06.2019 22:00, breannaasmith1122
Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?
Answers: 1
image
Mathematics, 21.06.2019 22:30, azainababbas
Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25
Answers: 1
image
Mathematics, 22.06.2019 00:30, ericka79
What is the mean of the data set 125, 141, 213, 155, 281
Answers: 2
You know the right answer?
Recent scientific literature has suggested a link between exposure to the endocrine disruptor Bisphe...

Questions in other subjects:

Konu
Mathematics, 15.12.2020 01:00
Konu
Mathematics, 15.12.2020 01:00
Konu
Mathematics, 15.12.2020 01:00